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Chiang Mai

$452+ Cheap flights from O'Hare Intl (ORD) to Chiang Mai (CNX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNX
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Chiang Mai are usually found in February or September, booked 13 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from O'Hare Intl to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Chiang Mai (CNX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$674
(Expedia)

One-way from

$452
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,558
From Chicago O'Hare Intl to Chiang Mai
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One-way flight from Chicago O'Hare Intl to Chiang Mai
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Highest demand for flights based on searches. 21% potential increase in price ($356 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from O'Hare Intl to Chiang Mai

Cheapest flights from O'Hare Intl to Chiang Mai
Explore the most affordable flight options available from O'Hare Intl to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Expedia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:45 pmORD - CNX
2 stops27h 35mMultiple Airlines
Mon 9/158:00 pmCNX - ORD
2 stops30h 55mMultiple Airlines
Deal found 8/14$674
This Travelocity deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:25 pmORD - CNX
2 stops32h 20mMultiple Airlines
Fri 11/2110:10 amCNX - ORD
2 stops34h 10mMultiple Airlines
Deal found 8/12$714
This Expedia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/75:45 pmORD - CNX
2 stops27h 35mMultiple Airlines
Mon 9/158:00 pmCNX - ORD
2 stops30h 55mMultiple Airlines
Deal found 8/14$717
This Trip.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:25 pmORD - CNX
2 stops29h 55mMultiple Airlines
Sun 11/1610:10 amCNX - ORD
2 stops40h 40mMultiple Airlines
Deal found 8/13$719
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:25 pmORD - CNX
2 stops28h 00mMultiple Airlines
Tue 11/257:45 pmCNX - ORD
2 stops24h 35mMultiple Airlines
Deal found 8/12$752
This Trip.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/285:45 pmORD - CNX
2 stops27h 35mMultiple Airlines
Sun 10/58:00 pmCNX - ORD
2 stops48h 40mMultiple Airlines
Deal found 8/14$757
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:25 pmORD - CNX
2 stops28h 00mMultiple Airlines
Wed 11/127:45 pmCNX - ORD
2 stops24h 35mMultiple Airlines
Deal found 8/12$840
This Cathay Pacific deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:40 pmORD - CNX
1 stop39h 10mCathay Pacific
Sun 2/157:40 pmCNX - ORD
1 stop30h 20mCathay Pacific
Deal found 8/14$857
This Gurufare deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:40 pmORD - CNX
1 stop39h 10mCathay Pacific
Thu 11/1310:35 amCNX - ORD
1 stop39h 25mCathay Pacific
Deal found 8/14$865
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:40 pmORD - CNX
1 stop39h 10mCathay Pacific
Sun 11/1610:35 amCNX - ORD
1 stop39h 25mCathay Pacific
Deal found 8/13$905
This TeaFlight deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TeaFlight is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:00 pmORD - CNX
1 stop38h 40mCathay Pacific
Mon 9/297:25 pmCNX - ORD
1 stop31h 00mCathay Pacific
Deal found 8/13$908

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Chiang Mai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Chiang Mai that are best for you.

Fly from

O'Hare Intl

Fly to

Chiang Mai

Route

Depart

Return

Price

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Mon 9/8

5:45 pm-9:20 am

2 stops27h 35m

Chiang Mai

Mon 9/15

8:00 pm-2:55 pm

2 stops30h 55m

$674

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Sun 9/7

5:45 pm-9:20 am

2 stops27h 35m

Chiang Mai

Mon 9/15

8:00 pm-2:55 pm

2 stops30h 55m

$717

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 11/12

4:25 pm-11:20 am

2 stops29h 55m

Chiang Mai

Sun 11/16

10:10 am-1:50 pm

2 stops40h 40m

$719

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/11

4:25 pm-9:25 am

2 stops28h 00m

Chiang Mai

Tue 11/25

7:45 pm-7:20 am

2 stops24h 35m

$752

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Wed 11/5

4:25 pm-9:25 am

2 stops28h 00m

Chiang Mai

Wed 11/12

7:45 pm-7:20 am

2 stops24h 35m

$840

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/4

2:40 pm-6:50 pm

1 stop39h 10m

Chiang Mai

Tue 2/17

10:35 am-1:00 pm

1 stop39h 25m

$857

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/4

2:40 pm-6:50 pm

1 stop39h 10m

Chiang Mai

Sun 2/15

7:40 pm-1:00 pm

1 stop30h 20m

$857

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/4

2:40 pm-6:50 pm

1 stop39h 10m

Chiang Mai

Mon 2/16

7:40 pm-1:00 pm

1 stop30h 20m

$857

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Tue 11/4

2:40 pm-6:50 pm

1 stop39h 10m

Chiang Mai

Thu 11/13

10:35 am-1:00 pm

1 stop39h 25m

$865

ChicagoChiang Mai

ORD - CNX

ORDCNX

Chicago O'Hare Intl

Sun 9/28

11:25 am-9:50 am

2 stops34h 25m

Chiang Mai

Sun 10/5

5:20 pm-9:40 am

2 stops28h 20m

$867

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 15 results
1
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Best time to book a flight from O'Hare Intl to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Chiang Mai

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Chiang Mai. Price data was last updated on August 8, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Chiang Mai is 13 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Chiang Mai (average of $1,006). Flying from Chicago O'Hare Intl Airport to Chiang Mai in December is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to CNX?

Find hourly flight availability from O'Hare Intl to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Chiang Mai at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

What’s the top layover airport for flights from Chicago O'Hare Intl Airport to Chiang Mai?

Share of 1-stop round-trip flights from Chicago O'Hare Intl Airport to Chiang Mai chosen by Cheapflights users in the past 12 months, using the same layover each way.

Taipei City (TPE) – chosen by Cheapflights users on 96% of 1-stop itineraries from Chicago O'Hare Intl Airport to Chiang Mai on Cheapflights.

What’s the cheapest layover airport for flights from Chicago O'Hare Intl Airport to Chiang Mai?

Average round-trip fare for 1-stop flights from Chicago O'Hare Intl Airport to Chiang Mai, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $1,288.

What’s the fastest layover option from Chicago O'Hare Intl Airport to Chiang Mai?

Shortest average travel time for 1-stop one-way flights from Chicago O'Hare Intl Airport to Chiang Mai, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Taipei City (TPE) have the shortest average one-way travel time for 1-stop routes: 22h 05m.

Which airport typically offers the quickest layover for flights from Chicago O'Hare Intl Airport to Chiang Mai?

Average layover duration for 1-stop one-way flights from Chicago O'Hare Intl Airport to Chiang Mai, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average layover time of 2h 43m.

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with EVA Air, Korean Air, and Delta from Chicago O'Hare Intl Airport to Chiang Mai to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,233 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Korean Air
8.4
Very good
1,131 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Delta
8.0
Very good
7,980 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Cathay Pacific
7.6
Good
968 reviews
EVA Air
8.4
Very good
1,233 reviews

Crew

8.6

Entertainment

8.0

Food

8.1

Boarding

8.4

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Chiang Mai from Chicago O'Hare Intl?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Chiang Mai. 4 airlines have flights to Chiang Mai from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Chiang Mai should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Chiang Mai round-trip?

    According to our current data, Cathay Pacific ($933), Korean Air ($965), and EVA Air ($982) offers the cheapest pricing from Chicago O'Hare Intl Airport to Chiang Mai. Cathay Pacific is 29% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from O'Hare Intl to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Chiang Mai.

  • Can I find deals for business class flights from O'Hare Intl to Chiang Mai?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Chiang Mai?

    Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Chiang Mai (average of $1,006). Flying from Chicago O'Hare Intl Airport to Chiang Mai in December is currently the most expensive (average of $1,624). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from O'Hare Intl to Chiang Mai

Discover the top 4 airlines that operate flights from O'Hare Intl to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$933Average$1,347FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$965Average$1,276FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$982Average$1,442FlexibilityNo cancel feeOn-time74%
DeltaCheapest$1,059Average$1,374FlexibilityNo cancel feeOn-timeN/A

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